• Tweaked taskbar grouping behaviour (#486).
• Advice on avoiding trouble with taskbar grouping and icon consistence in manual page and wiki Tips page (#420, #486, ~#471).
• Fixed New window option from window title menu on multi-monitor systems (#491).
• Fixed start on other monitor in Windows 10 / MinGW (#489, thanks to rupor).
• Guarding against escape sequence parameter overflow (~#490, thanks to Iwamoto Kouichi).